7834545 has 12 divisors (see below), whose sum is σ = 13579956. Its totient is φ = 4178400.

The previous prime is 7834543. The next prime is 7834573. The reversal of 7834545 is 5454387.

It can be written as a sum of positive squares in 2 ways, for example, as 2852721 + 4981824 = 1689^2 + 2232^2 .

It is not a de Polignac number, because 7834545 - 2¹ = 7834543 is a prime.

It is a super-2 number, since 2×7834545² = 122760190714050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7834543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87006 + ... + 87095.

It is an arithmetic number, because the mean of its divisors is an integer number (1131663).

Almost surely, 2^7834545 is an apocalyptic number.

It is an amenable number.

7834545 is a deficient number, since it is larger than the sum of its proper divisors (5745411).

7834545 is a wasteful number, since it uses less digits than its factorization.

7834545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174112 (or 174109 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 7834545 is about 2799.0257233545. The cubic root of 7834545 is about 198.6115922564.

The spelling of 7834545 in words is "seven million, eight hundred thirty-four thousand, five hundred forty-five".